I think some of the experiences people seem to have had in covers bands is a shame , because I've had some good times with some like minded people , but I totally get why playing with people who make comments like the guitarist mentioned in the post above ruin what might have been an enjoyable project
We had no rules in our covers band , some songs we tried play something near the record , right down to the right sounds , and other times we altered the instrumentation , structure or feel , both I found an enjoyable process and achievement